Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Naoho Baba0
Date of Patent
June 7, 2011
0Patent Application Number
122796300
Date Filed
February 9, 2007
0Patent Primary Examiner
Patent abstract
The present invention provides a nitrogen analyzing apparatus comprising:a nitrogen concentration measuring device configured to measure the concentration of an nitrogen impurities in a mixed gas including argon and oxygen as main components on the basis of emission intensity of a light emitted from the nitrogen impurities by an electric discharge in a discharge tube and an oxygen concentration of a sample gas introduced into the discharge tube, and a diluting oxygen-introducing device configured to add a diluting oxygen in the sample gas sampled from the mixed gas according to the oxygen concentration of the mixed gas.
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